Low energy (e,2e) measurements of CH4 and neon in the perpendicular plane

  • Kate L. Nixon
    University of Manchester 1 Photon Science Institute, School of Physics and Astronomy, , Oxford Road, Manchester M13 9PL, United Kingdom
  • Andrew James Murray
    University of Manchester 1 Photon Science Institute, School of Physics and Astronomy, , Oxford Road, Manchester M13 9PL, United Kingdom
  • Hari Chaluvadi
    Missouri University of Science and Technology 2 Department of Physics, , Rolla, Missouri 65409, USA
  • Sadek Amami
    Missouri University of Science and Technology 2 Department of Physics, , Rolla, Missouri 65409, USA
  • Don H. Madison
    Missouri University of Science and Technology 2 Department of Physics, , Rolla, Missouri 65409, USA
  • Chuangang Ning
    Tsinghua University 3 Department of Physics, State Key Laboratory of Low-Dimensional Quantum Physics, , Beijing 100084, People's Republic of China

書誌事項

公開日
2012-03-01
DOI
  • 10.1063/1.3690461
公開者
AIP Publishing

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説明

<jats:p>Low energy experimental and theoretical triple differential cross sections for the highest occupied molecular orbital of methane (1t2) and for the 2p atomic orbital of neon are presented and compared. These targets are iso-electronic, each containing 10 electrons and the chosen orbital within each target has p-electron character. Observation of the differences and similarities of the cross sections for these two species hence gives insight into the different scattering mechanisms occurring for atomic and molecular targets. The experiments used perpendicular, symmetric kinematics with outgoing electron energies between 1.5 eV and 30 eV for CH4 and 2.5 eV and 25 eV for neon. The experimental data from these targets are compared with theoretical predictions using a distorted-wave Born approximation. Reasonably good agreement is seen between the experiment and theory for neon while mixed results are observed for CH4. This is most likely due to approximations of the target orientation made within the model.</jats:p>

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